Sale: Take 20 percent off select sale items. Don’t miss out on free shipping for online purchases of more than $250, with sale code “HOLIDAY2011.”

HSN.com

Sale: Receive special Black Friday half-off deals on a range of products, from electronics to beauty and fashion.

us.havaianas.com

Sale: Snag a pair of flip-flops for a winter vacation in the tropics, or just for hanging around the house. Havaianas is offering free shipping on all purchases.

Piperlime.com

Sale: Enjoy 20 percent off the entire site, from tomorrow to Monday.

HankyPanky.com

Sale: Visit this site for the sexiest of sales. Panties are priced as low as $11.99, in addition to 50 percent off a range of undergarments. There will be free ground shipping on all purchases. The sale begins tonight at 9 p.m.

Sale: Splurge on amazing jewelry for an amazing deal. The label will be offering $100 off any silver jewelry purchase, and $1,000 off any gold jewelry purchase.

ViaSpiga.com

Sale: Enjoy 20 percent off Via Spiga online purchases. Don’t forget to vote through Facebook for one of three shoes featured; the winning shoe will be an additional 30 percent off its Black Friday price!

FrenchConnection.com

Sale: Receive 30 percent off all full-price and on-sale items until Monday. Use discount code “FCBLKFRI.”

BlissWorld.com

Sale: Take advantage of 20 percent off Bliss, Elemis and Laboratoire Remede products in this beauty blowout sale, starting tomorrow.

UrbanDecay.com

Sale: Tomorrow, be one of the first 1,000 shoppers at Urban Decay’s online store and receive $20 off its limited-edition Book of Shadows Volume IV, which includes 16 eye-shadow shades and more.

TantalizingTea.com

Sale: Find 30 percent off the entire site, plus an additional 30 percent off sale items. There will be free shipping on any order over $50, so sign on at 6 a.m. and start clicking! Use promo-code: CYBERJOY.

Department stores

Kmart

Locations throughout the city

Sale: Stores open today at 6 a.m. for 50 percent off select toys, up to 40 percent off bedding and bath supplies, and 50 percent off assorted Christmas decorations. Tomorrow, stores open at 5 a.m. for deep discounts on brands such as PlayStation, Craftsman tools, Panasonic, Garmin and more.

Sears

Locations in Brooklyn and Queens

Sale: Today from 4 a.m. to 1 p.m., take advantage of more than 500 deals on electronics, jewelry, appliances, clothing, shoes, outerwear, fragrances, kitchen, home goods and more, all up to 50 percent off.

Kohl’s

Locations throughout the city

Sale: Shop midnight to midnight for great values on electronics, toys, clothing and jewelry. And, don’t miss the Early Bird special: Shoppers who arrive between midnight and 1 a.m. will receive up to an extra 50 percent markdown on items like Polaroid and Android tablets, Fisher-Price and Matchbox toys, and Croft & Barrow apparel.

Bloomingdale’s

1000 Third Ave., 212-705-2000; and 504 Broadway, 212-729-5900

Sale: Tomorrow, the 59th Street location opens at 8 a.m. and the SoHo location opens at 10 a.m. for special savings throughout the store, including $15 back on every $100 you spend on your Bloomingdale’s card.

Lord & Taylor

424 Fifth Ave., 212-391-3344

Sale: Early birds get the deals! The first 500 shoppers will receive $20 to $40 gift cards when doors open at 5 a.m. tomorrow. Also, don’t miss 50 percent off men’s coats, kid’s dress wear and AK Anne Klein boots, plus many more discounts.

Macy’s

Herald Square, 212-695-4400; other locations throughout the city

Sale: Arrive at midnight tonight for amazing offers on jewelry, electronics, beauty and fashion. Check out Sharper Image items marked down 50 percent, dresses marked off 20 percent, $199 diamond studs and, of course, the Justin Bieber holiday fragrance gift set. Two dollars from every Bieber gift set will be donated to the Make-A-Wish Foundation. It’s a give-and-take!

Sale: Spend $40 and receive a tote bag for $20 with $130 worth of Bath & Body Works products. Also, post a photo of your Bath & Body Works haul on Twitter and enter for a chance to win a $25 gift card. One gift card will be given away every hour from 5 a.m. to 3 p.m. tomorrow.

Electronics & toys

Best Buy

Locations throughout the city

Sale: Stores open at midnight tonight for doorbuster deals including $199.99 for a Sharp 24-inch LCD television, $299.99 for a Samsung 15-inch laptop and more.

Sale: Black Friday discounts will be offered from 8 a.m. to 1 p.m., with up to 50 percent off select cameras, tablets, netbooks and notebooks from brands such as Sony, Dell, Panasonic and Apple.

Chain stores

BCBG

Locations throughout the city

Sale: Sweaters, boots, outerwear and leather goods are 50 percent off at all BCBGMAXAZRIA retail stores.

Intermix

Locations throughout the city

Sale: Don’t miss out on this accessories extravaganza, with labels Imoni and Eugenia Kim. Purchase two accessories and receive 20 percent off; take three accessories and receive 25 percent off; splurge on four or more and receive 30 percent off.

Sale: Give and you shall receive! Donate six canned goods to any Alexis Bittar store and score 15 percent off your in-store purchase.

Banana Republic

Locations throughout the city

Sale: It’s first-come, first-served at Banana Republic. Shop before 1 p.m. tomorrow and receive 40 percent off; markdowns drop to 25 percent for the rest of the day. But there’s plenty of time: the Banana Republic at Herald Square opens at midnight, and all the other NYC locations open between 6 and 7 a.m.

Esprit

Locations throughout the city

Sale: Snag up to 50 percent off everything in the store, and “e-shop” at esprit.com.

Links of London

535 Madison Ave., 212-588-1177

Sale: Enjoy 20 percent off all watches. Plus, with a purchase of $250, receive a $25 gift card, and with a purchase of $500 or more, receive a $50 gift card.

Ann Taylor

Locations throughout the city

Sale: Arrive at any Ann Taylor at midnight for special store-specific offers. Be sure to pop by Ann Taylor at Rockefeller Center for shopping surprises (including a live DJ and the chance to win a $1,000 shopping spree) between midnight and 6 a.m.

Loft

Locations throughout the city

Sale: Don’t miss 40 percent off your entire purchase.

French Connection

Locations throughout the city

Sale: Receive 30 percent off all full-price and on-sale items until Monday.

Superdry

718 Broadway; 646-602-9195

Sale: Receive 40 percent off your total purchase, with additional discounts on select items. Shoppers will also receive a $25 voucher with every $100 spent before noon, and the first 100 customers will have the chance to win a $500 shopping spree and personal styling session.

Gap

Locations throughout the city

Sale: Receive up to 60 percent off the entire store until Sunday.

American Eagle Outfitters, aerie & 77kids

Locations throughout the city

Sale: Take 40 percent off all full-price and on-sale items in stores only until Sunday.

Armani Exchange

Locations throughout the city

Sale: Receive $50 off every $150 purchase in stores, only until Monday.